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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Fri, 13 Jan 2023 09:50:24 +0100
Message-ID: <CAMuHMdU2vaVaCrcKom5YQYD9GLoeerX8HAQav36uFGUksOFc9w@mail.gmail.com>
Subject: Re: [PATCH 16/22] spi: remove spi-sh-sci
To:     Christoph Hellwig <hch@lst.de>
Cc:     Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>, Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arch@vger.kernel.org,
        dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org,
        linux-input@vger.kernel.org, linux-media@vger.kernel.org,
        linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
        netdev@vger.kernel.org, linux-gpio@vger.kernel.org,
        linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org,
        linux-serial@vger.kernel.org, linux-usb@vger.kernel.org,
        linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org,
        linux-sh@vger.kernel.org
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On Fri, Jan 13, 2023 at 7:24 AM Christoph Hellwig <hch@lst.de> wrote:
> Now that arch/sh is removed this driver is dead code.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  drivers/spi/Kconfig      |   7 --
>  drivers/spi/Makefile     |   1 -
>  drivers/spi/spi-sh-sci.c | 197 ---------------------------------------
>  3 files changed, 205 deletions(-)
>  delete mode 100644 drivers/spi/spi-sh-sci.c
>
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index 7508dcef909c78..76f3bc6f8c81fc 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -882,13 +882,6 @@ config SPI_SH_MSIOF
>         help
>           SPI driver for SuperH and SH Mobile MSIOF blocks.
>
> -config SPI_SH_SCI
> -       tristate "SuperH SCI SPI controller"
> -       depends on SUPERH
> -       select SPI_BITBANG
> -       help
> -         SPI driver for SuperH SCI blocks.

This driver uses the Serial Communications Interface (SCI, cfr.
drivers/tty/serial/sh-sci.c) in SPI mode. Hence in theory it could be
used on a variety of Renesas ARM SoCs, and even on RZ/Five.
Again, no DT support.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds